WordNet

an elementary particle with positive charge; interaction of a positron and an electron results in annihilation (同)antielectron
the electrode in a transistor where electrons originate

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1. 認知症の評価に関する神経画像診断研究 neuroimaging studies in the evaluation of dementia
2. 黒色腫（メラノーマ）の画像検査 imaging studies in melanoma
3. 肺結節のCTおよびPET computed tomographic and positron emission tomographic scanning of pulmonary nodules
4. 胸部PET thoracic positron emission tomography
5. 肺癌の画像検査 imaging of lung cancer

On the dose calculation at the cellular level and its implications for the RBE of (99m)Tc and (123)I.

Freudenberg R, Runge R, Maucksch U, Berger V, Kotzerke J.
Medical physics.Med Phys.2014 Jun;41(6):062503. doi: 10.1118/1.4876296.
PURPOSE: Based on the authors' previous findings concerning the radiotoxicity of(99m)Tc, the authors compared the cellular survival under the influence of this nuclide with that following exposure to the Auger electron emitter (123)I. To evaluate the relative biological effectiveness (RBE) of both r
PMID 24877837

Schütz G1, Rembold A1, Pooch A1, Meier S1, Schneeweiss P2, Rauschenbeutel A2, Günther A3, Chang WT4, Hwang IS4, Stibor A5.
Ultramicroscopy.Ultramicroscopy.2014 Jun;141:9-15. doi: 10.1016/j.ultramic.2014.02.003. Epub 2014 Mar 12.
Experiments with electron or ion matter waves require a coherent, monochromatic and long-term stable source with high brightness. These requirements are best fulfilled by single atom tip (SAT) field emitters. The performance of an iridium covered W(111) SAT is demonstrated and analyzed for electrons
PMID 24704604

Stolz A1, Berthelot J, Mennemanteuil MM, Colas des Francs G, Markey L, Meunier V, Bouhelier A.
Nano letters.Nano Lett.2014 May 14;14(5):2330-8. doi: 10.1021/nl404707t. Epub 2014 Apr 9.
We introduce strongly coupled optical gap antennas to interface optical radiation with current-carrying electrons at the nanoscale. The transducer relies on the nonlinear optical and electrical properties of an optical gap antenna operating in the tunneling regime. We discuss the underlying physical
PMID 24697629